2004 Fiat Punto

Fiat punto 1.2 2004 reg overheating, ok guys problem seems to be car overheats temp goes off the scale and into the red, loss of power on the accelerator and gradually stalls, Then there is a ticking sound as thou it is coming from the fuse box under the bonnett, car will restart eventually after quite a while, Had a new ecu, new coil pack and leads new plugs and new thermostat, at a loss now any help please
April 21, 2011.

So temp dont fluctuate it just goes strate up till overheat? Any work donr on car prior to this happening? Any chance water pump is not functioning properly?

Apr 21, 2011.